A Carnot.s engine is made lo work between 200^@C and 0^@C first and then between 0^@C and -200^@C . the ratio of efficiencies of the engine in the two cases is

A Carnot.s engine is made lo work between 200^@C and 0^@C first and th

1.	A Carnot.s engine is made lo work between 200^@C and 0^@C first and then between 0^@C and -200^@C . the ratio of efficiencies of the engine in the two cases is
Answer» 1.73:1 `1:1.73 ` `1:1` `1:2` ANSWER :B